Glass-annealing furnace



{N ModeLj GEORGE 8v C. M. SHORTLE.

GLASS ANNEALING FURNAGEI4 UNITED STATES PATENT OEEICE.

JAPHUS GEORGE AND CHRISTOPHER MICHAEL SHORTIIE-OF ITHACA,

' NEW YORK.

l i GLAS'SANN-EALING4 FU RNACE..A

SPECIFICATION forming psa f Letters Paten No. 543,207, lated July 2s, l ses.

' Application sled June 11,1892. serial No. 436,410. (No model.)

` To all whom it may concern: l

las

Be it known that we, JAPHUS GEORGE and CHRISTOPHER MICHAEL SHORTLE, citizens of the United States of America, and residents of Ithaca, Tompkins county, and State of New York, have invented an Improved GlassAn 4just in front of the shafts of the ilattening' and annealing wheels. Fig. 3- is a longitudinal sectional elevation of one of the boxings and bar-beds. Fig. 4 arej forms of thebars. Fig. 5 is a transverse sectional elevation, of our flue. Fig. 6 is a View of a roofgirder con; cealed in the joints of our-rooting-stones. Fig. 7 is a section of our asbestos fabric with its wire-netting. Fig. 8 is an elevation of our division-wall between the attening and annealing chambers, supported by a girder between the abutments f f the abutments being in perpendicular section and the rest of the wall its iiattening-chamber front, except where the mantle-wall n abuts against it, the girder being on the curved line of the anneal- 1 ing-chamber wall and the view from within the lattening-chamber` looking toward the annealing-chamber.

In the figures, a is the vertical shaft of our annealing-wheel, from the hub of which project the arms b,which extend outwardly to near the wall j of the wheel-chamber. The arms are held to each other by a circular bar c, and exterior to that bar are the circular bed-bars d, bolted to the arms, on which-the sheets of glass are annealed. These bars may be whole circles, in which case the flatteners fork is withdrawn from beneath the sheets of tothe arms, one over the other, as the three f shown in Fig. 3, where the middle bars arel straight, the` upper ones bent by angles upward and the lower bent by angles downward.

To preventthesettlingof dust and products of combustion of fuel on the glass we put a boxing about each bed-section e, composed of the iloor e', ends e, sides, and lid e4, which'lid is hung inclined that its weight may keep it shut; and, further, to keep the dust and other products of colnbustion of fuel off of the glass while being annealed we construct a flue e5 over the glass beds and the boxing` when used. This ilue may be made of brick, supported on girders, with a thin metallic floor e6, as indicated in Fig. 5; or the floor may be made of asbestos fabric, such as is indicated in Fig. 7. This flue is close to the inclosing wall of the annealing-wheel and at one side of the lue, and its top may be partof the wall j and of the roof of the chamber. The inner wall e9 may be made of metal, as can be the whole nue. Through its door the heat passes to the sheets of glass below. The mouth of the flue is large, but decreases in size from h to h', where it reaches the escape-apertures h.

To facilitate the use of our Iiue cia divisionwall is placed above the lapping of the annealing-wheel, over the flattening-wheel, a

part or the whole of the distance between the made of a brick arch, or can be made, as indicated in Fig. 2, of flat stones t, supported by girders.

That the heat may be confined to the circumferential portion of the annealing-wheel a stationary hanging wall t' is suspended from the roof of the annealing-chamber, and a Wall t" fast to the wheel just under the Wall fr', and beneath that the stationary wall i, with the transverse Walls at intervals about the circumference of the annealingechamber between the Walls t andj.

Everything else .is believed to be apparent.

'What We claim isl. In the described annealing furnace and chamber, the described annealing wheel; constructe'd of a Vertical shaft, a central hub, radial arms, extending horizontally outward to near the inclosing wall of the chamber, and

a series of circular circumferential inter-v spaced bars, attached to the outer portions of the arms, as set forth.

2. In the described annealing wheel, and chamber, the bed sections with intervals between them, composed of segments of circular bars, fast to theouter ends of the arms of the wheel; the division of the bars into sections being for the purpose of the introduction and withdrawal of the tlatteners fork, as set forth.

3. In the described annealing chamber, the three heat confining Wal1sz`,@",, situated one over the other and co-operating with each other; the Wall c' being fast to the roof of the annealing chamber, and extending down to the inner edge of the beds of the Wheel; the wall z" being fast to the wheel, next to the annealing beds, and revolving With it; and

the wall i based on the ground and extending up to the wall i', as set forth.

4:. In combination with the described annealing wheel, in its chamber, with beds of bars, on which the sheets of glass are annealed; the boxing constructed of sheet metal, about and inclosing each bed space; fast to and revolving with the Wheel, as set forth.

5. In the described glass flattening and annealing furnace, the division Wall, constructed betweenthe flattening and annealing chambers, supported by the girder g4 spanning the space between, and supported by the abutments f', f, the wall being provided with the aperture e7, which opens into the flue e5, in the upper part of the annealing chamber; and with an aperture g5, through which the sheets of glass are transferred from the flattening Wheel and chamber, to the annealing chamber and beds; the Wall being adapted to cause the products of the combustion of fuel toenter the flue e5, as set forth.

`6. In combination, and as a part of the described annealing Wheel, Athe transverse, .me-

tallic, mantle walls, placed over, and fast to, and revolving with the beds of bars of the annealing wheel, in the intervals between the beds of bars; whereby the heated air is confined, and conveyed about the chamber, with the sheets of glass while cooling, as set forth.

JAPHUS GEORGE. CHRISTOPHER MICH-AEL SHOR'ILE. W'itnesses:

SAMUEL J. PARKER, T. J. MCELHENY. 

